Evaluate: The author describes Earth as a "master recycler." Do you agree that the rock cycle functions as...

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9. Evaluate: The author describes Earth as a "master recycler." Do you agree that the rock cycle functions as a recycling system? Justify your stance using at least two specific processes from the text.
10. Critical Thinking: The Law of Superposition applies specifically to undeformed sequences of rock. If powerful tectonic forces buckle, fold, or completely overturn a mountain ridge, how would that complicate a geologist's work, and what clues from the passage might help them unravel the true chronological order?

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Evaluate: Yes, the rock cycle functions as a recycling system. One process is weathering and erosion, which breaks down rocks into smaller particles that can form sedimentary rocks. Another process is melting and cooling, where rocks are melted into magma and then cool to form igneous rocks. These processes demonstrate how materials are continuously recycled in the rock cycle. Critical Thinking: Tectonic forces that buckle, fold, or overturn rock layers complicate the application of the Law of Superposition, as the original sequence of layers is disturbed. Geologists might use clues such as the presence of index fossils or radiometric dating to determine the true chronological order of the rock layers.

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Evaluate: The author describes Earth as a "master recycler." Do you agree that the rock cycle functions as...

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